EP0336978B1 - Method of correcting contour profile - Google Patents

Method of correcting contour profile Download PDF

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Publication number
EP0336978B1
EP0336978B1 EP88908759A EP88908759A EP0336978B1 EP 0336978 B1 EP0336978 B1 EP 0336978B1 EP 88908759 A EP88908759 A EP 88908759A EP 88908759 A EP88908759 A EP 88908759A EP 0336978 B1 EP0336978 B1 EP 0336978B1
Authority
EP
European Patent Office
Prior art keywords
profile
elements
definition
shape
added
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88908759A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0336978A4 (en
EP0336978A1 (en
Inventor
Masaki Seki
Takashi Takegahara
Takeshi F. Manshon Harimomi 8-306 Arakaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fanuc Corp
Original Assignee
Fanuc Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fanuc Corp filed Critical Fanuc Corp
Publication of EP0336978A1 publication Critical patent/EP0336978A1/en
Publication of EP0336978A4 publication Critical patent/EP0336978A4/en
Application granted granted Critical
Publication of EP0336978B1 publication Critical patent/EP0336978B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/4093—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
    • G05B19/40931—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine concerning programming of geometry
    • G05B19/40932—Shape input
    • G05B19/40933—Selecting figure elements from a menu table
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/406—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by monitoring or safety
    • G05B19/4069—Simulating machining process on screen
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/35—Nc in input of data, input till input file format
    • G05B2219/35461—Digitizing, menu tablet, pencil
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/36—Nc in input of data, input key till input tape
    • G05B2219/36077—Display and select, modify shape, pattern on screen
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/36—Nc in input of data, input key till input tape
    • G05B2219/36314—Superpose and combine shapes
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/36—Nc in input of data, input key till input tape
    • G05B2219/36325—Enter shape with mouse, tablet, enter on screen coordinates, lines, circles
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/36—Nc in input of data, input key till input tape
    • G05B2219/36335—Select and show already defined lines, circles to define from them new element
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Definitions

  • This invention relates to a method of revising a profile, and more particularly, to a profile revising method for revising a profile comprising specified figure elements such as points, straight lines and circles which are connected in order.
  • figure definition is performed by defining straight lines S1, S2, S3 and a circle C1 [see Fig. 10(b)] which are necessary for defining a part profile, as follows using a keyboard or tablet:
  • S2 y2 Y
  • S3 y2 Y
  • P1 S1, S2
  • the figure elements (which are displayed on a CRT screen) are picked/in order, e.g., P1 ⁇ S2 ⁇ C1 ⁇ S3 ⁇ S1 (where, with regard to the circle C1, a point on the circular arc is picked, with the clockwise direction serving as a reference), and the profile A [Fig. 10(a)] is defined in the manner P1 S2,P2 C1,SW,P3 S3, P4 S1 It should be noted that Eq. (6) signifies a shape up to the point P3 clockwise along the circle C1.
  • machining starting and end points, etc., of the profile A are designated by motion statement definition to define a tool path along which a tool is moved.
  • an object of the present invention is to provide a profile revising method through which a profile can be revised simply and quickly, as a result of which NC data obtained based on the defined profile can also be created simply and quickly.
  • Another object of the present invention is to provide a profile revising method through which new figure elements can be added to an already defined profile in a simple manner.
  • the foregoing objects are attained by a step of displaying, on a display screen, a profile and one or more figure elements for specifying a shape added to the profile, a step of designating a predetermined figure element of the profile and designating the figure elements, which constitute the added shape, in order along a definition direction of the profile, and a step of generating a new profile by connecting the added shape to the designated figure element of the profile, and displaying the new profile on the display screen.
  • Fig. 1 is a block diagram of an apparatus for practicing the present invention.
  • Numeral 101 denotes a ROM storing a loading program and the like, 102 a processor for executing automatic programming processing, and 103 a RAM for storing a system program read in from a floppy FL, as well as various parameters and results of processing.
  • Numeral 104 denotes an NC data memory for storing the finally created NC data having an executable format, 105 a keyboard, 106 a display unit (CRT), 107 a disc controller, and 108 a tablet device having a tablet surface 108a to which a menu chart 108b having menu items is affixed. Prescribed menu items are picked by a tablet cursor 108c. A graphic cursor GCS on a display screen is moved by moving the cursor 108a on the tablet surface.
  • FL represents a floppy disc.
  • the CRT 106 displays a profile A which prevails prior to a revision, the profile being composed of straight lines S1′, S2′, S3′ and circular arc C1′, as indicated by the solid lines, as well as straight lines Sn, St and a circle Ck, indicated by the one-dot chain lines, which are figure elements for addition to the profile for the purpose of revising the same. It should be noted that it can be arranged so that the added figure elements are displayed as solid lines in a color different from that of the profile A.
  • Fig. 2 is a view for describing the principal parts of the menu chart 108b.
  • Numeral 1 is a "POINT/POINT GROUP DEFINITION” section, 2 a “STRAIGHT LINE DEFINITION” section, 3 a “CIRCLE DEFINITION” section, 4 a "SPECIAL SHAPE DEFINITION” section and 5 a "SHAPE ORIGINATION” section.
  • the "SHAPE ORIGINATION” section 5 includes a "SHAPE REVISION” item 5a and a "SHAPE REVISION END” item 5b.
  • Fig. 3 is a flowchart of profile revision processing according to the invention
  • Figs. 4 through 9 are views for describing profile revision processing.
  • the profile revising method of the invention will now be described in accordance with Figs. 3 through 9. It is assumed that the system program for creating the NC part program, parameters and the like have already been stored in the RAM 103 from the floppy disc FL.
  • the profile A comprising the straight lines S1′, S2′, S3′ and circular arc C1′ shown in Fig. 4, by way of example, is defined.
  • the profile definition statement is as follows: P1 S2,P2 C1,CW,P3 S3,P4 S1
  • the processor 102 stores the figure definition statements and profile definition statement in the RAM 103 and displays the profile on the CRT 106 (step 201).
  • the profile A is to be revised into a new profile by adding a shape composed of other figure elements, e.g., the circle Ck and straight lines Sn, St indicated by the dashed lines in Fig. 4, to the circular arc C1′ of the profile A.
  • the processor 102 causes the CRT 106 to display the prompt "SELECT SHAPE TO BE REVISED". Accordingly, the operator positions the graphic cursor GCS on the profile A, for example, to specify the shape to be revised (step 204).
  • the processor 102 causes the CRT 106 to display the prompt "SELECT ELEMENT TO BE REVISED".
  • the operator positions the graphic cursor GCS on the circular arc C1′ of the profile A to specify the figure element to be revised (step 205; see Fig. 5).
  • the processor 102 causes the CRT 106 to display the prompt "SELECT ELEMENT TO BE ADDED" (see Fig. 6). Accordingly, the operator selects the straight line Sn, which is a figure element similarly entered in advance.
  • the straight line Sn which is a figure element similarly entered in advance.
  • two directions are conceivable, namely the Sn1′ direction and Sn2′ direction relative to a boundary which is the point of intersection P5 between the circular arc C1′ and the figure element Sn. Therefore, the graphic cursor GCS is positioned on the figure element on the side of the selected direction (here the Sn1′ direction) to pick this figure element.
  • the straight line Sn1′ is thus selected.
  • the circle Ck which is a figure element similarly entered in advance in response to the same prompt.
  • the circle Ck there are two points of intersection between the circle Ck and the straight line Sn, namely P6 and P7 (see Fig. 7), and four circular arcs are conceivable, namely circular arcs Ck1′, Ck2′ in clockwise and counter-clockwise directions with point of intersection P6 as the starting point, and circular arcs Ck3′, Ck4′ in clockwise and counter-clockwise directions with point of intersection P7 as the starting point. Therefore, the graphic cursor GCS is positioned on the figure element near the starting point of the selected circular arc (here the arc Ck1′) to pick the same. Thus, the circular arc Ck1′ is selected.
  • the straight line St which is a figure element entered in advance in response to the same prompt.
  • the circle Ck and the straight line St there are two points of intersection between the circle Ck and the straight line St, namely P8 and P9 (see Fig. 8), and points are conceivable on four straight lines, namely straight lines Ct1′, Ct2′ extending in left and right directions with point of intersection P8 as the starting point, and straight lines Ct3′, Ct4′ extending in left and right directions with point of intersection P9 as the starting point. Therefore, the graphic cursor GCS is positioned on the figure element near the starting point of the selected straight line (here the straight line Ct1′) to pick the same.
  • the straight line St1′ extending in the left direction and having P8 as its starting point is selected.
  • step 206 The foregoing is step 206.
  • the final step is to connect the figure element St1′ to the profile A. That is, the "SHAPE REVISION END" item 5b is picked from the tablet menu table 108b and the graphic cursor GCS is then positioned on the figure element (here the circular arc C1′) of profile A to which the figure element St1′ is to be connected, thereby selecting this figure element (step 207).
  • the profile A is revised to a new profile A′, which is displayed on the display screen CRT [step 209; Fig. 9(a)].
  • figure elements constituting an added shape as well as first and second figure elements (which may coincide in some cases) of the original profile to which the first and last figure elements of the added shape are connected, are specified, whereupon the figure definition statements of the figure elements constituting the added shape are added to the figure definition statements in the part program of the original profile, and the names of the figure elements of the added shape are inserted between the first and second figure elements in the profile definition statements of the part program, thereby generating a new profile part program.
  • the profile is displayed on the CRT on the basis of this part program.
  • a profile is arranged to display, on a display screen, a profile and one or more figure elements for specifying a shape added to the profile, designate a predetermined figure element of the profile and designate the figure elements, which constitute the added shape, in order along a definition direction of the profile, and generate a new profile by connecting the added shape to the designated figure element of the profile, and display the new profile on the display screen.
  • a profile can be revised simply and quickly, as a result of which NC data obtained based on the defined profile can also be created simply and quickly.

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  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Geometry (AREA)
  • Numerical Control (AREA)
  • Image Analysis (AREA)
EP88908759A 1987-10-15 1988-10-07 Method of correcting contour profile Expired - Lifetime EP0336978B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP62260077A JPH01102605A (ja) 1987-10-15 1987-10-15 輪郭形状修正方法
JP260077/87 1987-10-15
PCT/JP1988/001026 WO1989003551A1 (en) 1987-10-15 1988-10-07 Method of correcting contour profile

Publications (3)

Publication Number Publication Date
EP0336978A1 EP0336978A1 (en) 1989-10-18
EP0336978A4 EP0336978A4 (en) 1993-03-03
EP0336978B1 true EP0336978B1 (en) 1994-12-21

Family

ID=17342983

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88908759A Expired - Lifetime EP0336978B1 (en) 1987-10-15 1988-10-07 Method of correcting contour profile

Country Status (5)

Country Link
US (1) US5095439A (ja)
EP (1) EP0336978B1 (ja)
JP (1) JPH01102605A (ja)
DE (1) DE3852542T2 (ja)
WO (1) WO1989003551A1 (ja)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2820994B2 (ja) * 1990-02-19 1998-11-05 三菱電機株式会社 動的シミュレーション方法
JP2830407B2 (ja) * 1990-07-13 1998-12-02 三菱電機株式会社 曲線抽出装置およびｎｃプログラミングシステム
JP2773517B2 (ja) * 1992-02-27 1998-07-09 三菱電機株式会社 プログラム表示装置
US5715166A (en) * 1992-03-02 1998-02-03 General Motors Corporation Apparatus for the registration of three-dimensional shapes
JP3574462B2 (ja) * 1993-06-11 2004-10-06 ファナック株式会社 領域指定方法
JP5931638B2 (ja) * 2012-07-31 2016-06-08 東芝機械株式会社 数値制御システムおよび数値制御データ生成方法

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Publication number Priority date Publication date Assignee Title
US4546434C1 (en) * 1979-10-03 2002-09-17 Debbie A Gioello Method for designing apparel
JPS57189207A (en) * 1981-05-18 1982-11-20 Fanuc Ltd Numerical control system
JPS58149581A (ja) * 1982-02-27 1983-09-05 Fanuc Ltd パ−トプログラムデ−タ作成方式
KR880001306B1 (ko) * 1982-08-31 1988-07-22 미쓰비시전기 주식회사 수치제어장치의 도형정의(圖形定義)방식
JPS6111810A (ja) * 1984-06-26 1986-01-20 Fanuc Ltd 自動プログラミング方法
US4618924A (en) * 1984-09-28 1986-10-21 General Electric Company Automatic machining using constructive solid geometry with Boolean combinations of primitives including tool offsets to form a machining pattern
JPS61170807A (ja) * 1985-01-25 1986-08-01 Yamazaki Mazak Corp 数値制御装置
JPH0623926B2 (ja) * 1985-04-30 1994-03-30 三菱重工業株式会社 数値制御装置
JPS62121511A (ja) * 1985-11-22 1987-06-02 Mitsubishi Electric Corp 数値制御装置
JPS62130405A (ja) * 1985-11-30 1987-06-12 Fanuc Ltd Ｎｃデ−タ修正方法
US4882692A (en) * 1986-10-30 1989-11-21 Transformercad, Inc. Methods and systems for generating parametric designs
JPH01169508A (ja) * 1987-09-02 1989-07-04 Fanuc Ltd 輪郭形状修正方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 11, no. 103 (P-562)2 April 1987 *

Also Published As

Publication number Publication date
US5095439A (en) 1992-03-10
EP0336978A4 (en) 1993-03-03
JPH01102605A (ja) 1989-04-20
EP0336978A1 (en) 1989-10-18
WO1989003551A1 (en) 1989-04-20
DE3852542T2 (de) 1995-06-01
DE3852542D1 (de) 1995-02-02

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